Referring to matrix rows and columns

- When you work in Mathematica,…it is likely that you will have large data sets.…If you want to specify certain elements of a data set,…such as a particular item within a matrix…or a specific row or column,…then you can do that by creating references to those items.…In this movie, I will show you…how to create those references.…I am working in a blank Mathematica notebook.…So I need to enter in some data.…I'll start by defining a matrix,…and I'll call it amat equals.…

And then I need to create my list.…And in this case, I want to have two rows,…so I need to create two sublists.…Typed two left curly brackets,…one for the list, one to start the first row.…And I'll enter in the values, seven, 14, 21.…Then a right curly bracket to end the first row, comma.…Left curly bracket to start the second.…Then eight, nine, 10.…And two right curly brackets to close it out.…And shift enter.…I can display the amat matrix…in matrix form using the MatrixForm keyword.…

Author

Released

6/24/2015

Mathematica 10 Essential Training teaches information workers how to analyze data using the Mathematica 10 environment and language. After completing the course, members will be able to set up Mathematica notebooks, import data, use operators to perform simple calculations, create and manipulate lists, perform matrix calculations, analyze data using descriptive statistics, and write and debug Mathematica scripts. Author Curt Frye also shows how to visualize data with charts, convert files into the Computable Document Format, and add animation to make your results more interactive.